<script setup>
import { User, Lock } from '@element-plus/icons-vue'
import { ref } from 'vue'
import { ElMessage } from 'element-plus'

//控制注册与登录表单的显示， 默认显示注册
const isRegister = ref(false)
//定义数据模型
const registerData = ref({
    username:'',
    password:'',
    rePassword:''
})

const checkRePassword = (rule,value,callback)=>{
    if(value === ''){
        callback(new Error('请再次输入密码'))
    }else if(value !== registerData.value.password){
        callback(new Error('请保证两次输入密码一致'))
    }else callback()
}
//定义校验规则
const rules = {
    username:[
        {required: true, message: '请输入用户名', trigger: 'blur'},
        { min: 5, max: 16, message: '长度为5-16位非空字符', trigger: 'blur' }
    ],
    password:[
        {required: true, message: '请输入密码', trigger: 'blur'},
        { min: 5, max: 16, message: '长度为5-16位非空字符', trigger: 'blur' }
    ],
    rePassword:[
        {validator: checkRePassword, trigger: 'blur'}
    ]
}
//调用后台接口完成注册
import {userRegisterService,userLoginService} from '@/api/user.js'
const register = async()=>{
    let result = await userRegisterService(registerData.value)
    // if(result.code === 0){
    //     //成功
    //     alert(result.msg? result.msg : "注册成功");
    // }else{
    //     //失败
    //     alert("注册失败");
    // }
    // alert(result.msg? result.msg : "注册成功")
    ElMessage.success(result.msg? result.msg : "注册成功")
    isRegister.value = false
}
import {useRouter} from 'vue-router'
import {useTokenStore} from '@/stores/token.js';
const router = useRouter()
const tokenStore = useTokenStore();
const login = async()=>{
    let result = await userLoginService(registerData.value);
    // if(result.code === 0){
    //     //成功
    //     alert(result.msg? result.msg : "登录成功");
    // }else{
    //     //失败
    //     alert("登录失败");
    // }
    // alert(result.msg? result.msg : "登录成功");
    ElMessage.success(result.msg? result.msg : "登录成功")
    //存储token
    tokenStore.setToken(result.data)
    router.push('/')
}

//清空数据模型数据
const clearRegisterData = ()=>{
    registerData.value = {
        username:'',
        password:'',
        rePassword:''
    }
}
</script>

<template>
    <el-row class="login-page">
        <el-col :span="12" class="bg"></el-col>
        <el-col :span="6" :offset="3" class="form">
            <!-- 注册表单 -->
            <el-form ref="form" size="large" autocomplete="off" v-if="isRegister" :model = "registerData" :rules = "rules">
                <el-form-item>
                    <h1>注册</h1>
                </el-form-item>
                <el-form-item prop = "username">
                    <el-input :prefix-icon="User" placeholder="请输入用户名" v-model="registerData.username"></el-input>
                </el-form-item>
                <el-form-item prop = "password">
                    <el-input :prefix-icon="Lock" type="password" placeholder="请输入密码" v-model="registerData.password"></el-input>
                </el-form-item>
                <el-form-item prop = "rePassword">
                    <el-input :prefix-icon="Lock" type="password" placeholder="请输入再次密码" v-model="registerData.rePassword"></el-input>
                </el-form-item>
                <!-- 注册按钮 -->
                <el-form-item>
                    <el-button class="button" type="primary" auto-insert-space @click = "register">
                        注册
                    </el-button>
                </el-form-item>
                <el-form-item class="flex">
                    <el-link type="info" :underline="false" @click="isRegister = false; clearRegisterData()">
                        ← 返回
                    </el-link>
                </el-form-item>
            </el-form>
            <!-- 登录表单 -->
            <el-form ref="form" size="large" autocomplete="off" v-else :model="registerData" :rules = "rules">
                <el-form-item>
                    <h1>登录</h1>
                </el-form-item>
                <el-form-item prop="username">
                    <el-input :prefix-icon="User" placeholder="请输入用户名" v-model="registerData.username"></el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input name="password" :prefix-icon="Lock" type="password" placeholder="请输入密码"v-model="registerData.password" show-password></el-input>
                </el-form-item>
                <el-form-item class="flex">
                    <div class="flex">
                        <el-checkbox>记住我</el-checkbox>
                        <el-link type="primary" :underline="false">忘记密码？</el-link>
                    </div>
                </el-form-item>
                <!-- 登录按钮 -->
                <el-form-item>
                    <el-button class="button" type="primary" auto-insert-space @click ="login">登录</el-button>
                </el-form-item>
                <el-form-item class="flex">
                    <el-link type="info" :underline="false" @click="isRegister = true; clearRegisterData()">
                        注册 →
                    </el-link>
                </el-form-item>
            </el-form>
        </el-col>
    </el-row>
</template>

<style lang="scss" scoped>
/* 样式 */
.login-page {
    height: 100vh;
    background-color: #fff;

    .bg {
        background: url('@/assets/logo2.png') no-repeat 60% center / 240px auto,
            url('@/assets/login_bg.jpg') no-repeat center / cover;
        border-radius: 0 20px 20px 0;
    }

    .form {
        display: flex;
        flex-direction: column;
        justify-content: center;
        user-select: none;

        .title {
            margin: 0 auto;
        }

        .button {
            width: 100%;
        }

        .flex {
            width: 100%;
            display: flex;
            justify-content: space-between;
        }
    }
}
</style>